Winding-machine.



A; BUTTER.

WINDING MAGHINE.

APPLIOATION mum B30528, 1908.

998,398, Patented July 18,1911.

V We Winesses: Invenior:

Z I Mm COLUMBIA PLANOURAPH C0,, WASHINGTON. D. c.

UNITED STATES PATENT OFFICE.

ANTON ROTTER, 0F RORSGHACH, SWITZERLAND, ASSIGNOR TO FRITZ BAUM & 00., 0F RORSCHACH, SWITZERLAND.

WINDING-MACHINE.

Specification of Letters Patent.

Application filed December 28, 1908.

Patented July 18, 1911.

Serial No. 469,552.

To all whom it may concern:

Be it known that I, ANTON Ro'rrnn, a subject of the Emperor of Austria-Hungary, residing at Rorschach, Speerstrasse 10, Switzerland, have invented certain new and useful Improvements in Winding-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyin drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

In prior winding-machines a very slow, uniform motion is given to the dofler, in order to enable loosening and dofling of the cop or bobbin, without the latter being compressed or flattened.

According to the present invention the motion of' the dolfer is divided into three phases of different speeds, and the doffer controls the well-known central binding and foundation laying operations. The doffer, locked during winding of the cop, ap-

proaches while the central binding is being done, strikes the cop for the purpose of loosening it, pushes it (subsequent to loosening) axially, at increased speed, in order to doff it, and in the course of its accelerated retreat, halts for a certain interval, for the purpose of admitting of the foundation for a fresh cop being laid. All these movements are produced by means of a single cam and result during half a revolution of the shaft.

The new machine is illustrated in the accompanying drawing, in which- Figure 1 is a side elevation, partly in section, and Fig. 2 a part sectional plan. Fig. 3 shows a front elevation of a part of the machine. Fig. 4 is a like view of a portion of the mechanism shown in Fig. 3, with the operative parts in another position. Fig. 5 shows the cam. Figs. 6 and 7 show details to be hereinafter referred to.

1 is the cop tube or spindle, mounted to revolve in the stationary bearing 2. 3 is a pinion, coupled with the cop tube 1, and 4 is a gear-wheel mounted on the workingshaft 5 and meshing with the pinion 3. 6 is an auxiliary shaft driven off the workingshaft 5 by means of a worm 7 and wormwheel 8.

9 is a clutch of familiar construction, coupling the cam 11 with the shaft 6 and thrown in by means of a feeler 10. The cam 11 operates a lever 12, which acts upon the end 13 of the cop tube shaft. On the shaft 6, and secured to the cam 11, there is also mounted a second earn 1 1, into whose path there projects a roller 15 (Figs. 1 and 5) mounted on an oscillatory lever 16. A roller 17 at the free end of the lever 16 lies opposite the upturned end of the doifer 18. The latter is mounted in guides in the bearing 2, so as to slide parallel with the cop tube shaft. A spring 19 has the tendency always to draw the dolfer 18 backward.

To the doffer 18 there issecured a pushbar 20, which at first descends vertically, but is then bent in horizontal direction. This bar 20 slides parallel with the cop tube 1 and doffer 18, in guides 21. To it there is secured a wedge-piece 22, against which there bears a roller 23 (Figs. 3 and 1) mounted on a pivotal lever 24:. From the latter there projects a lateral rod 25, which bears against the pivoted thread-guide 26, constantly pressed toward the rod 25 by a spring 27. To the lever 2& there is also pivoted a connecting-rod 28, pivoted at the other end to a bent lever 29, whose other extremity carries a cross-bar 30, which temporarily serves as auxiliary thread-guide in well-known manner. The cam 14: (Fig. 5) is of peculiar shape, presenting a gradually ascending section a, a contiguous section b ascending somewhat more rapidly, and a section 0 of very much steeper gradient. The central angle a B 7 decreases at the sections a, b, 0 corresponding with the increase in gradient. The fourth section (1 descends abruptly, almost radially; while the fifth section f exhibits a circular path. The angle 8 is considerably smaller than the angle 4:.

The operation of the machine is as follows :\Vhen the cop 81 has attained a certain diameter the rear end of the threadfeeler 10 (Figs. 6 and 7) releases an arm 32, which shifts the two cams 11, 14, and the one half of the clutch 9, and thus couples the cams with the shaft 6. The roller 15 occupies the position shown in Fig. 5. The cam 14 rotates in the direction of the arrow and the roller 15 ascends the cam track as far as the commencement of the section a, whereby the roller 17 is caused to butt against the dolfer 18. On continued rotation of the cam 14 the doffer 18 with pushbar 20 is slightly shifted and the nose 22 pushes back the lever 24, whereby the auxiliary thread-guide 30 is drawn from the position shown in Fig. 3 into that shown in Fig. 4. At the same time the thread-guide 26 will be swung back by the rod 25 (Figs. 8 and 4), so that the thread is caught in the notch of the auxiliary guide 30 Fig. 1). The doffer 18, which has not yet arrived at the cop, travels slowly up to the latter for the purpose of loosening it. During this period the final central-winding 6., a. series of windings of threads which are placed on top of the cop while the auxil-iary thread guide is in action, will be performed, as the thread is held in central position by the auxiliary guide 30. Meanwhile the elevated section of the cam 11 will have arrived opposite the roller of the lever 12, whereupon the latter will butt against the end 13 of the cop tube shaft and will thus break the connection between the latter and the pinion 3 in well-known manner, so that the cop tube will be stopped. The doft'er has now arrived in a position corresponding substantially to the meetingpoint of the sections a and b of the cam 14 and is ready to act upon the cop. It loosens itby a slow motion and then suddenly doffs it by rapid motion (sections 6 and c of the cam 14 operating). Thereupon the doft'er returns at still increased speed (section d operating). Before reaching its backmost position it halts for a certain interval (section f operating). This occurs when the roller of the lever 12 has 'left the elevated track of the cam 11, so that the cop tube shaft is again coupled with the pinion 8 by the action of the spring 33 Fig. 1). Since the auxiliary guide 30 still occupies the position shown in Fig. 4, the central foundation will now be laid owing to the rotation of the cop tube. lVhen the roller 15 has reached the end of the section f, it returns rapidly to its initial position, whereupon doffer, thread-guide and auxiliary threadguide will likewisereturn to the posit-ions they originally occupied (Figs. 1 and A lateral prominence34 on the cam 11 will now return the lever 32 (Fig. 7) into its initial position in well-known manner.

Having now particularly described and ascertained the nature of the said invention and in what manner the same is to be performed, I declare that what I claim is:

1. In a winding machine having means for binding the thread at the close of the winding operation, the combination with a dotfer and a lever to actuate it, of an irregular shaped cam for moving said lever and thereby the dofier, said cam having a cam face the first portion of which moves the lever to advance the doffer during the binding operation, a second oortion of a steeper gradient to cause the do er to loosen the cop or bobbin with a slow axial shifting motion, a third portion to cause the doifer to rapidly dofi the cop, a fourth portion to permit the rapid return of the doifer for a portion of its travel at a still faster speed, and a final portion to retain the doifer in its partially retracted position for an interval of time and then permit the dofier to complete its return movement more rapidly than its forward movement.

2. In a winding-machine, in combination, a dofi'er, a disk having an irregular cam-surface, the first section of which rises rapidly in radial direction; a second section rising slowly; a third section rising more rapidly to the highest point; a fourth section descending abruptly and being approximately radial; a fifth section running coaxially; a sixth section again rapidly descending, and a pivotal lever operating the doffer and actuated by said cam-disk; whereby the doifer is advanced and retracted at difierent speeds.

3. In a winding-machine, in combination, a cop-spindle, a reciprocating dofier, a thread-guide, an auxiliary thread-guide, and means for retracting the thread-guide from the spindle and simultaneously advancing the auxiliary thread-guide toward the spindle during the forward motion of the doifer, substantially as described.

4. In a winding-machine, in combination, a cop spindle, a reciprocating dofier; a disk having an irregular cam-surface the first section of which rises rapidly in radial direction; a second section rising slowly; a third section rising more rapidly to the highest point; a fourth section descending abruptly, being approximately radial; a fifth section running coaxially; a sixth section again rapidly descending; a pivotal lever operating the doffer and actuated by said camdisk; a thread-guide, an auxiliary threadguide, and means actuated by the doifer in its forward movement for retracting the threadguide from the cop spindle and simultaneously advancing the auxiliary thread-guide toward the latter substantially as described.

5. In a cop winding-machine, in combination, a cop-spindle, a doffer, means for actuating the latter, a push-bar carried by the doifer and presenting a wedge-piece, a

pivotal thread-guide, and a pivotal aux'ilas my invention, I have signed my name in iary thread-guide actuatedby the said wedgepresence of two subscribing Witnesses.

'iece Whereb the threadide is retracted igrom the 00% spindle a d the auxiliary ANTON ROTTER' 5 thread-guide simultaneously advanced to- Witnesses:

Ward the latter, substantially as described. ERNST FISCHER,

In testimony that I claim the foregoing JOSEPH SIMON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latents,

Washington, D. C. 

